JP6191008B2 - refrigerator - Google Patents

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JP6191008B2
JP6191008B2 JP2013192509A JP2013192509A JP6191008B2 JP 6191008 B2 JP6191008 B2 JP 6191008B2 JP 2013192509 A JP2013192509 A JP 2013192509A JP 2013192509 A JP2013192509 A JP 2013192509A JP 6191008 B2 JP6191008 B2 JP 6191008B2
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refrigerator
heat insulating
insulating material
vacuum heat
control unit
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JP2015059678A (en
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真梨子 中尾
真梨子 中尾
雅英 中島
雅英 中島
永幡　真也
真也 永幡
山口　太郎
太郎 山口
道雄 福田
道雄 福田
理 上野
理 上野
朗 川勾
朗 川勾
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Priority to CN201420534987.0U priority patent/CN204100686U/en
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Description

本発明は冷蔵庫に関し、特に冷蔵庫本体の天井面断熱構成に関するものである。   The present invention relates to a refrigerator, and more particularly to a ceiling surface heat insulation configuration of a refrigerator body.

一般にこの種の冷蔵庫は、断熱性を有する冷蔵庫本体内に冷蔵室、冷凍室、野菜室等を備え、これら各冷蔵室、冷凍室、野菜室等に食品を収納し冷却保存している。   In general, this type of refrigerator is provided with a refrigerator compartment, a freezer compartment, a vegetable compartment, etc. in a refrigerator body having heat insulation properties, and food is stored in each of these refrigerator compartments, freezer compartments, vegetable compartments and the like.

このため冷蔵庫本体及び扉は断熱性を確保する必要があり、例えば冷蔵庫本体では、外箱と内箱との間に発泡ウレタンを充填し、この冷蔵庫本体の背面、側面に真空断熱材を設けてある。そして、最近では天井面に冷蔵庫制御部を配置するようになった関係から天井面にも真空断熱材を設けたものが見られる（例えば、特許文献１参照）。   For this reason, it is necessary to ensure heat insulation of the refrigerator body and the door. For example, in the refrigerator body, urethane foam is filled between the outer box and the inner box, and vacuum insulators are provided on the back and side surfaces of the refrigerator body. is there. In recent years, a vacuum heat insulating material is also provided on the ceiling surface because the refrigerator control unit is arranged on the ceiling surface (see, for example, Patent Document 1).

図８は上記特許文献１に記載された冷蔵庫を示し、この冷蔵庫は冷蔵庫本体１０１の天井面１０２後方上部に冷蔵庫制御部１０３が設けてあって、この冷蔵庫制御部１０３からの熱を遮断するように真空断熱材１０４が設けてある。この真空断熱材１０４は、天井面１０２の後方上部に冷蔵庫制御部１０３が設けられていてこの部分が凹部１０５となっているから、この天井面形状に沿った形の略Ｚ字状に成型して、天井面１０２を構成する外箱１０６内面（あるいは図示しないが内箱上面）に設けてある。なお、図中１０７は天井面１０２を構成する内箱１０８の冷蔵室内面側に設けられている庫内照明灯である。   FIG. 8 shows the refrigerator described in the above-mentioned Patent Document 1. This refrigerator has a refrigerator control unit 103 provided at the upper rear part of the ceiling surface 102 of the refrigerator main body 101 so as to block heat from the refrigerator control unit 103. A vacuum heat insulating material 104 is provided. The vacuum heat insulating material 104 is provided with a refrigerator control unit 103 at the upper rear portion of the ceiling surface 102 and this portion is a concave portion 105. Therefore, the vacuum heat insulating material 104 is molded into a substantially Z shape along the shape of the ceiling surface. The inner surface of the outer box 106 constituting the ceiling surface 102 (or the upper surface of the inner box although not shown) is provided. In the figure, reference numeral 107 denotes an interior lighting lamp provided on the side of the refrigerator compartment surface of the inner box 108 constituting the ceiling surface 102.

特開２００９−２４９２２号公報JP 2009-24922 A

上記特許文献１記載の構成によれば、天井面外方からの外気熱はもちろん、冷蔵庫制御部１０４からの熱も真空断熱材１０３によって遮断することができて、その断熱効果は高いものとなる。   According to the configuration described in Patent Document 1, not only the outside air heat from the outside of the ceiling surface but also the heat from the refrigerator control unit 104 can be blocked by the vacuum heat insulating material 103, and the heat insulation effect is high. .

しかしながら、このような構成では、真空断熱材１０４を略Ｚ字状に成型する必要があって生産コストがかかる上に、略Ｚ字状に成型する関係からグラスウール等の芯材をバインダーで固めた一般的な真空断熱材を使用することができないこともあって割高になるという課題があった。   However, in such a configuration, it is necessary to mold the vacuum heat insulating material 104 into a substantially Z shape, which is costly to produce. In addition, a core material such as glass wool is hardened with a binder from the relationship of molding into a substantially Z shape. There was a problem that it was expensive because a general vacuum heat insulating material could not be used.

また、真空断熱材１０４は略Ｚ字状に成型可能な柔軟なものを使用せざるを得ないため、保形性が悪く、生産過程の搬送時に変形して芯材がガスバリヤ用の外被材を傷つける恐れが高くなる。そのため生産過程時の真空断熱材の取扱いに注意が必要になってこの点からも生産性低下による割高感が増すとともに、真空断熱材自体の品質にも懸念が生じることになる。   Moreover, since the vacuum heat insulating material 104 must use a flexible material that can be molded in a substantially Z-shape, the shape retaining property is poor, and the core material is deformed during conveyance in the production process, so that the core material is a jacket material for the gas barrier. The risk of hurting is increased. For this reason, attention must be paid to the handling of the vacuum heat insulating material during the production process, and from this point of view, the feeling of high price due to the decrease in productivity is increased and the quality of the vacuum heat insulating material itself is concerned.

本発明はこのような点に鑑みてなしたもので、割高感や品質懸念を生じることなく天井面の断熱性を高めた冷蔵庫を提供するものである。   This invention is made | formed in view of such a point, and provides the refrigerator which improved the heat insulation of the ceiling surface, without producing a feeling of expensiveness or a quality concern.

本発明は上記目的を達成するため、冷蔵庫本体の天井面は、その後方上部に冷蔵庫制御部を有するとともに前方冷蔵室内面側に庫内照明灯を備えていて、前記冷蔵庫制御部と対
向する部分の内箱側に第１真空断熱材を装着するとともに、前記庫内照明灯と対向する部分の外箱側に前記第１真空断熱材とは別体の第２真空断熱材を装着して構成してある。 In order to achieve the above object, the ceiling surface of the refrigerator main body has a refrigerator control unit at the rear upper part thereof, and is provided with an interior illumination lamp on the front refrigeration indoor surface side, and faces the refrigerator control unit The first vacuum heat insulating material is mounted on the inner box side of the inner wall, and the second vacuum heat insulating material is mounted separately from the first vacuum heat insulating material on the outer box side of the portion facing the interior illumination lamp. It is.

これにより、第１、第２真空断熱材は天井面の形状に合わせて例えば略Ｚ字状に成型するなどの必要がないため、板状の真空断熱材をそのまま用いることができるとともに、バインダーで固めた保形性の良い一般的な真空断熱材を用いることができるので、生産過程の搬送時等に真空断熱材が変形して芯材がガスバリヤ用の外被材を傷つけるなどの恐れも大幅に低減することができる。しかも、冷蔵庫制御部の設置部分と庫内照明灯の設置部部分の断熱を行う真空断熱材をそれぞれ別々にして設けたので、冷蔵庫制御部分側の真空断熱材の厚みは庫内照明灯の高さ寸法で吸収し、庫内照明灯側の真空断熱材の厚みは冷蔵庫制御部の高さ方向の寸法で吸収することができて、真空断熱材を設けたことによる厚み増加を解消することができ、天井面壁厚を薄く保ちつつ断熱性を向上させることができる。   As a result, the first and second vacuum heat insulating materials do not need to be molded into, for example, a substantially Z shape in accordance with the shape of the ceiling surface. Hardened general vacuum insulation material with good shape retention can be used, so there is a great risk that the vacuum insulation material will be deformed and the core material will damage the gas barrier jacket material during the production process. Can be reduced. Moreover, since the vacuum heat insulating material that insulates the installation part of the refrigerator control unit and the installation part of the interior lamp is provided separately, the thickness of the vacuum insulation material on the refrigerator control part side is the height of the interior lamp. The thickness of the vacuum heat insulating material on the interior lamp side can be absorbed by the height direction of the refrigerator control unit, and the increase in thickness due to the provision of the vacuum heat insulating material can be eliminated. It is possible to improve the heat insulation while keeping the wall thickness of the ceiling surface thin.

本発明は、上記した構成により、冷蔵庫制御部や庫内照明灯等を備えている天井面であっても真空断熱材は特別な加工をせず板状の一般的な真空断熱材を使用して壁厚増加を抑制しつつ断熱することができるとともに、生産過程時に真空断熱材を傷つけるなどのことも抑制できて断熱性低下の懸念も大幅に低減でき、安価で断熱性の高い冷蔵庫を提供することができる。   The present invention uses a plate-like general vacuum heat insulating material without special processing even if it is a ceiling surface equipped with a refrigerator control unit, an interior lighting lamp, etc., due to the above-described configuration. In addition to being able to insulate while suppressing the increase in wall thickness, it is also possible to suppress damage to the vacuum insulation during the production process, greatly reducing the fear of deterioration of insulation, and providing an inexpensive and highly insulated refrigerator can do.

本発明の実施の形態１における冷蔵庫の外観斜視図External appearance perspective view of the refrigerator in Embodiment 1 of this invention 同冷蔵庫の概略断面図Schematic sectional view of the refrigerator 同冷蔵庫の天井部分を示す断面図Sectional drawing which shows the ceiling part of the refrigerator 同冷蔵庫の冷蔵庫本体を構成する内箱の天井部分を示す斜視図The perspective view which shows the ceiling part of the inner box which comprises the refrigerator main body of the refrigerator 同冷蔵庫の天井部分を背面側から見た斜視図The perspective view which looked at the ceiling part of the refrigerator from the back side 同冷蔵庫の天井部分の冷蔵庫制御部と機械室を示す斜視図The perspective view which shows the refrigerator control part and machine room of the ceiling part of the refrigerator 同図６のＡ−Ａ線要部拡大断面図The AA line principal part expanded sectional view of the same FIG. 従来の冷蔵庫の天井部分を示す断面図Sectional drawing which shows the ceiling part of the conventional refrigerator

第１の発明は、外箱と内箱との間に発泡断熱材を充填して構成した冷蔵庫であって、前記冷蔵庫の冷蔵庫本体天井面はその後方上部に冷蔵庫制御部を有するとともに前方の冷蔵室内面側に庫内照明灯を備えていて、前記冷蔵庫制御部と対向する部分の内箱側に第１真空断熱材を装着するとともに、前記庫内照明灯と対向する部分の外箱側に前記第１真空断熱材とは別体の第２真空断熱材を装着した構成としてある。   1st invention is the refrigerator comprised by filling a foam heat insulating material between the outer box and the inner box, Comprising: The refrigerator main body ceiling surface of the said refrigerator has a refrigerator control part in the back upper part, and is refrigerated ahead An interior lamp is provided on the indoor surface side, and the first vacuum heat insulating material is mounted on the inner box side of the portion facing the refrigerator control unit, and on the outer box side of the portion facing the interior lamp. The second vacuum heat insulating material is separate from the first vacuum heat insulating material.

これにより、第１、第２真空断熱材は天井面の形状に合わせて例えば略Ｚ字状に成型するなどの必要がないため、板状の真空断熱材をそのまま用いることができるとともに、バインダーで固めた保形成の良い真空断熱材を用いることができるので、生産過程の搬送時等に真空断熱材が変形して芯材がガスバリヤ用の外被材を傷つけるなどの恐れも大幅に低減することができる。しかも、冷蔵庫制御部の設置部分と庫内照明灯の設置部部分の断熱を行う真空断熱材をそれぞれ別々にして設けたので、天井面の壁厚が厚くなるのを抑制することができる。すなわち、一枚の直性状の真空断熱材を冷蔵庫制御部の下端面と庫内照明灯の上端面との間に設置すると、この真空断熱材の厚み分だけ天井面の壁厚が厚くなるが、上記構成によれば冷蔵庫制御部分側の真空断熱材の厚みは庫内照明灯の高さ寸法で吸収し、庫内照明灯側の真空断熱材の厚みは冷蔵庫制御部の高さ方向の寸法で吸収することができて、真空断熱材を設けたことによる厚み増加を解消することができ、天井面壁厚を薄く保ちつつ断熱性を向上させることができる。   As a result, the first and second vacuum heat insulating materials do not need to be molded into, for example, a substantially Z shape in accordance with the shape of the ceiling surface. Hardened and well-formed vacuum insulation can be used, greatly reducing the risk of deformation of the vacuum insulation during transport of the production process, etc., and the core material damaging the jacket material for the gas barrier. Can do. And since the vacuum heat insulating material which insulates the installation part of a refrigerator control part and the installation part part of an interior lamp is provided separately, it can suppress that the wall thickness of a ceiling surface becomes thick. That is, if a single straight vacuum heat insulating material is installed between the lower end surface of the refrigerator control unit and the upper end surface of the interior lamp, the wall thickness of the ceiling surface increases by the thickness of the vacuum heat insulating material. According to the above configuration, the thickness of the vacuum heat insulating material on the refrigerator control portion side is absorbed by the height dimension of the interior lighting lamp, and the thickness of the vacuum heat insulating material on the interior lighting lamp side is the dimension in the height direction of the refrigerator control section. The thickness increase due to the provision of the vacuum heat insulating material can be eliminated, and the heat insulating property can be improved while keeping the wall thickness of the ceiling surface thin.

第２の発明は、第１の発明において、前記第１の真空断熱材と第２の真空断熱材はその端部分をオーバーラップさせた構成としてある。   According to a second invention, in the first invention, the first vacuum heat insulating material and the second vacuum heat insulating material are configured such that end portions thereof overlap each other.

これにより、天井面の庫内照明灯側から冷蔵庫制御部側に渡って切れ目なく真空断熱材で断熱することができ、天井面の断熱効果を向上させることができる。   Thereby, it can insulate with a vacuum heat insulating material seamlessly over the refrigerator control part side from the interior lighting lamp side of a ceiling surface, and can improve the heat insulation effect of a ceiling surface.

第３の発明は、第１または第２の発明において、前記冷蔵庫制御部と対向する第１の真空断熱材は冷蔵庫制御部との間に発泡断熱材が位置するように内箱上面に直接装着するとともに、庫内照明灯と対向する第２の真空断熱材も庫内照明灯との間に発泡断熱材が位置するように外箱内面に直接装着した構成としてある。   According to a third invention, in the first or second invention, the first vacuum heat insulating material facing the refrigerator control unit is directly mounted on the upper surface of the inner box so that the foam heat insulating material is positioned between the refrigerator control unit and the first vacuum heat insulating material. In addition, the second vacuum heat insulating material facing the internal lighting is also directly mounted on the inner surface of the outer box such that the foamed heat insulating material is positioned between the internal lighting.

これにより、各真空断熱材を発熱源となる冷蔵庫制御部や庫内照明灯に接して取り付けた場合に生じる外被熱伝導による断熱性の若干の低下も防止でき、天井面の断熱性をより高いものとすることができる。また、第１真空断熱材を直接装着した内箱と第２真空断熱材を直接装着した外箱とを組み合わせてそれらの間に発泡断熱材を充填すればよく、その際、内箱と外箱にそれぞれ真空断熱材保持部材を組み付けて第１、第２真空断熱材を中空状態で保持させるような手間が必要でなく、生産性も向上してコスト抑制効果を向上させることができる。   As a result, it is possible to prevent a slight decrease in the heat insulation property due to the outer shell heat conduction that occurs when each vacuum heat insulating material is attached in contact with the refrigerator control section or the interior lighting lamp as a heat source, and the heat insulation of the ceiling surface is further improved. Can be expensive. Further, the inner box directly attached with the first vacuum heat insulating material and the outer box directly attached with the second vacuum heat insulating material may be combined and filled with the foam heat insulating material between them. In addition, it is not necessary to assemble the vacuum heat insulating material holding member to hold the first and second vacuum heat insulating materials in a hollow state, and the productivity can be improved and the cost suppressing effect can be improved.

第４の発明は、第１〜第３の発明において、前記天井面には冷蔵庫制御部を収納する制御部収納ケースを装着するとともに、当該冷蔵庫制御部の後方に圧縮機を収容する凹状の機械室を設け、この機械室を形成する機械室ケースの冷蔵庫制御部側の開口縁部と前記冷蔵庫制御部を収納した制御部収納ケースの機械室側開口縁部とを係合させて連結した構成としてある。   According to a fourth aspect of the present invention, in the first to third aspects, a concave machine that houses a control unit storage case for storing a refrigerator control unit on the ceiling surface, and stores a compressor behind the refrigerator control unit. A configuration in which an opening edge on the refrigerator control unit side of the machine room case forming the machine room and an opening edge on the machine room side of the control unit storage case storing the refrigerator control unit are engaged and connected It is as.

これにより、冷蔵庫制御部と機械室との接合部分の強度を向上させることができ、冷蔵庫制御部に対向して真空断熱材を設けたことによりこれら両者間の隙間が狭くなって発泡断熱材の充填発泡時に当該発泡圧が前記冷蔵庫制御部と機械室との接合部分に集中的に加わるようなことがあっても、何ら専用の補強部材を設けることなくその接合部分の変形を防止でき、冷蔵庫制御部とともに圧縮機等を設置している天井面であっても当該天井面の外観平面度を良好に保持することができる。   As a result, the strength of the joint between the refrigerator control unit and the machine room can be improved, and by providing the vacuum heat insulating material facing the refrigerator control unit, the gap between them becomes narrower and the foam heat insulating material Even when the foaming pressure is intensively applied to the joint between the refrigerator control unit and the machine room at the time of filling and foaming, deformation of the joint can be prevented without providing any special reinforcing member. Even on the ceiling surface where a compressor or the like is installed together with the control unit, the appearance flatness of the ceiling surface can be satisfactorily maintained.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

（実施の形態１）
図１は本発明の実施の形態１における冷蔵庫の外観斜視図、図２は同冷蔵庫の概略断面図、図３は同冷蔵庫の天井部分を示す断面図、図４は同冷蔵庫の冷蔵庫本体を構成する内箱の天井部分を示す斜視図、図５は同冷蔵庫の天井部分を背面側から見た斜視図、図６は同冷蔵庫の天井部分の冷蔵庫制御部と機械室を示す斜視図、図７は同図６のＡ−Ａ線要部断面図である。 (Embodiment 1)
1 is an external perspective view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a schematic sectional view of the refrigerator, FIG. 3 is a sectional view showing a ceiling portion of the refrigerator, and FIG. 4 is a refrigerator main body of the refrigerator FIG. 5 is a perspective view of the ceiling portion of the refrigerator viewed from the rear side, FIG. 6 is a perspective view of the refrigerator control unit and the machine room of the ceiling portion of the refrigerator, FIG. FIG. 7 is a cross-sectional view of the main part taken along line AA in FIG. 6.

図１、図２において、冷蔵庫本体１は、前方に開口する金属製（例えば鉄板）の外箱２と、硬質樹脂製（例えばＡＢＳ）の内箱３と、これら外箱２と内箱３との間に充填した硬質発泡ウレタン等の発泡断熱材４からなる。上記冷蔵庫本体１はその内部に、冷蔵室５と、冷蔵室５の下に位置する切替室６及び切替室６に並設した製氷室７と、切替室６及び製氷室７の下部に位置する冷凍室８と、冷凍室８の下部に位置する野菜室９とを有する。また、前記冷蔵室５の前面は、例えば観音開き式の扉１０，１０により開閉自由に閉塞し、切替室６及び製氷室７と冷凍室８と野菜室９の前面部は引き出し式の扉１１，１２，１３，１４によって開閉自由に閉塞してある。   1 and 2, the refrigerator body 1 includes a metal (for example, iron plate) outer box 2 that opens forward, an inner box 3 that is made of hard resin (for example, ABS), an outer box 2, and an inner box 3. It consists of foam heat insulating materials 4, such as hard foaming urethane, filled between. The refrigerator main body 1 is located inside the refrigerator compartment 5, the switching chamber 6 located below the refrigerator compartment 5, the ice making chamber 7 juxtaposed to the switching chamber 6, and the switching chamber 6 and the lower part of the ice making chamber 7. It has a freezer compartment 8 and a vegetable compartment 9 located below the freezer compartment 8. Further, the front surface of the refrigerator compartment 5 is opened and closed freely by, for example, double doors 10 and 10, and the front portions of the switching chamber 6, the ice making chamber 7, the freezer compartment 8 and the vegetable compartment 9 are drawn out doors 11 and 10. 12, 13 and 14 are closed freely.

冷蔵庫本体１の背面には冷却室１６があり、冷気を生成する冷却器１７と、冷気を各室に供給する送風ファン１８とが設けてある。また、上記冷蔵庫本体１の本体天井後部には圧縮機１９が設けてあり、コンデンサ（図示せず）と、放熱用の放熱パイプ２０と、キャピラリーチューブ２１と、前記した冷却器１７とを順次環状に接続してなる冷凍サイクルに冷媒を封入し、冷却運転を行うように構成してある。   There is a cooling chamber 16 on the back surface of the refrigerator body 1, and a cooler 17 that generates cool air and a blower fan 18 that supplies the cool air to each chamber are provided. A compressor 19 is provided at the rear of the main body ceiling of the refrigerator main body 1, and a condenser (not shown), a heat radiating pipe 20, a capillary tube 21, and the cooler 17 are sequentially annular. A refrigerant is enclosed in a refrigeration cycle connected to the refrigeration cycle to perform a cooling operation.

ここで、上記冷蔵庫本体１の天井面２２にはその後方上部に前記圧縮機１９や送風ファン１８等を制御する冷蔵庫制御部２３が設けてあり、更にその前方の冷蔵室内面側に庫内照明灯２４を備えている。   Here, the ceiling surface 22 of the refrigerator body 1 is provided with a refrigerator control unit 23 for controlling the compressor 19 and the blower fan 18 and the like at the upper rear portion thereof, and further, the interior lighting is provided on the front side of the refrigerator compartment. A lamp 24 is provided.

図３は上記冷蔵庫本体１の天井部分を示し、前記冷蔵庫制御部２３は外箱２の天井面２２の後方寄り部分に制御部収納ケース２５を嵌め込み装着し、この制御部収納ケース２５に制御基板２６を取り付けて構成してある。   FIG. 3 shows a ceiling portion of the refrigerator main body 1, and the refrigerator control unit 23 is fitted with a control unit storage case 25 in a portion closer to the rear of the ceiling surface 22 of the outer box 2, and a control board is mounted on the control unit storage case 25. 26 is attached.

また、庫内照明灯２４は省エネ化のためにＬＥＤ等を用いて構成してあり、内箱３の前方の冷蔵室５内面側に臨むように装着してある。   Further, the interior lighting lamp 24 is configured by using LEDs or the like for energy saving, and is mounted so as to face the inner surface side of the refrigerator compartment 5 in front of the inner box 3.

そして、前記天井面２２の冷蔵庫制御部２３の後方には凹状の機械室２７を設け、この機械室２７に前記した圧縮機１９やこれを冷却する冷却ファン２８等が組み込んである。   A concave machine room 27 is provided behind the refrigerator control unit 23 on the ceiling surface 22, and the compressor 19 and a cooling fan 28 for cooling the compressor 19 are incorporated in the machine room 27.

前記機械室２７は図６に示す様に外箱２の天井面後部から背面板上部にかけて形成した開口に機械室ケース２９を嵌め込み装着して構成してある。そして、この機械室ケース２９と前記制御部収納ケース２５とは一体に連結してある。具体的には図７に示す様に制御部収納ケース２５の前記機械室側開口縁部の長手方向に一体形成した複数の係合片３０を前記機械室ケース２９の冷蔵庫制御部側の開口縁部に設けた係止孔３１に嵌合弾着させて一体に係合させてある。なお、図７中、３２は制御基板２６の上方から制御部収納ケース２５に覆着した制御部収納蓋である。   As shown in FIG. 6, the machine room 27 is constructed by fitting a machine room case 29 into an opening formed from the rear surface of the outer box 2 to the upper part of the back plate. And this machine room case 29 and the said control part storage case 25 are connected integrally. Specifically, as shown in FIG. 7, a plurality of engagement pieces 30 integrally formed in the longitudinal direction of the opening edge of the machine room side of the control unit storage case 25 are opened at the refrigerator control part side of the machine room case 29. It is engaged with and fixedly engaged with a locking hole 31 provided in the portion. In FIG. 7, reference numeral 32 denotes a control unit storage lid that covers the control unit storage case 25 from above the control board 26.

以上のように構成された上記冷蔵庫本体１の天井面２２には、図３に示す様に、冷蔵庫制御部２３と対向する部分の内箱３側に第１真空断熱材３３を装着するとともに、前記庫内照明灯２４と対向する部分の外箱２側に前記第１真空断熱材３３とは別体の第２真空断熱材３４が装着してある。   On the ceiling surface 22 of the refrigerator main body 1 configured as described above, as shown in FIG. 3, the first vacuum heat insulating material 33 is mounted on the inner box 3 side of the portion facing the refrigerator control unit 23, A second vacuum heat insulating material 34, which is separate from the first vacuum heat insulating material 33, is mounted on the outer box 2 side of the portion facing the internal lamp 24.

この第１真空断熱材３３及び第２真空断熱材３４は周知の如くグラスウール等の芯材をガスバリヤ用の例えばアルミシート等の外被材で真空密封して構成したもので、例えば特開２０１２−１０２７５８号公報、特開２０１１−９４６３７号公報に記載しているようなもので、板状でかつ汎用のものである。   As is well known, the first vacuum heat insulating material 33 and the second vacuum heat insulating material 34 are constructed by vacuum-sealing a core material such as glass wool with an outer covering material such as an aluminum sheet for gas barrier. As described in Japanese Patent Application Publication No. 102758 and Japanese Patent Application Laid-Open No. 2011-94637, it is plate-shaped and general-purpose.

そして、この実施の形態では、前記冷蔵庫制御部２３と対向する第１真空断熱材３３は冷蔵庫制御部２３との間に発泡断熱材４が位置するように内箱３上面に両面テープを貼り付けるなどして直接装着するとともに、庫内照明灯２４と対向する第２真空断熱材３４も庫内照明灯２４との間に発泡断熱材４が位置するように外箱２内面に両面テープで貼りつけるなどして直接装着してある。   In this embodiment, the first vacuum heat insulating material 33 facing the refrigerator control unit 23 is affixed with a double-sided tape on the upper surface of the inner box 3 so that the foam heat insulating material 4 is located between the first vacuum heat insulating material 33 and the refrigerator control unit 23. The second vacuum heat insulating material 34 facing the interior lamp 24 is also attached to the inner surface of the outer box 2 with a double-sided tape so that the foam heat insulating material 4 is located between the interior lamp 24 It is attached directly by attaching it.

さらに、上記第１真空断熱材３３と第２真空断熱材３４は、図３及び図５のＡに示す様に第１真空断熱材３３の庫内照明灯側端部が第２真空断熱材３４の冷蔵庫制御部側端部にオーバーラップするように設けてある。   Further, the first vacuum heat insulating material 33 and the second vacuum heat insulating material 34 are, as shown in FIG. 3 and FIG. It is provided so that it may overlap with the refrigerator control part side edge part.

以上のように構成したこの冷蔵庫は、天井面２２の冷蔵庫制御部２３と対向する部分の
内箱３側に第１真空断熱材３３を、そして前記庫内照明灯２４と対向する部分の外箱２側に前記第１真空断熱材３３とは別体の第２真空断熱材３４を備えているから、前記第１真空断熱材３３と第２真空断熱材３４によって天井面２２の断熱効果を高めることができる。 In the refrigerator configured as described above, the first vacuum heat insulating material 33 is provided on the side of the inner box 3 of the portion facing the refrigerator control unit 23 of the ceiling surface 22, and the outer box of the portion facing the interior lamp 24. Since the second vacuum heat insulating material 34 is provided separately from the first vacuum heat insulating material 33 on the second side, the heat insulating effect of the ceiling surface 22 is enhanced by the first vacuum heat insulating material 33 and the second vacuum heat insulating material 34. be able to.

しかも上記第１、第２真空断熱材３３、３４はそれぞれ別体物としてあるから、天井面２２の形状に合わせて例えば略Ｚ字状に成型するなどの必要がなく、板状の真空断熱材をそのまま用いることができる。よって、真空断熱材としては、バインダーで固めた保形成の良い真空断熱材を用いることができるので、生産過程の搬送時等に真空断熱材が変形して芯材がガスバリヤ用の外被材を傷つけるなどのことを大幅に低減することができる。   In addition, since the first and second vacuum heat insulating materials 33 and 34 are separately provided, there is no need to form, for example, a substantially Z shape in accordance with the shape of the ceiling surface 22, and a plate-shaped vacuum heat insulating material. Can be used as they are. Therefore, as the vacuum heat insulating material, a well-formed vacuum heat insulating material hardened with a binder can be used, so that the vacuum heat insulating material is deformed at the time of transport in the production process, etc., and the core material becomes an outer cover material for the gas barrier. It is possible to greatly reduce the damage.

また、上記した如く冷蔵庫制御部２３の設置部分と庫内照明灯２４の設置部部分の断熱を行う真空断熱材をそれぞれ別々にして設けたので、天井面２２の壁厚が厚くなるのを抑制することができる。すなわち、一枚の直性状の真空断熱材を冷蔵庫制御部２３の下端面と庫内照明灯２４の上端面との間に設置すると、この真空断熱材の厚み分だけ天井面２２の壁厚が厚くなるが、上記構成によれば冷蔵庫制御部分側の第１真空断熱材３３の厚みは庫内照明灯２４の高さ寸法で吸収し、庫内照明灯側の第２真空断熱材３４の厚みは冷蔵庫制御部２３の高さ方向の寸法で吸収することができて、真空断熱材を設けたことによる厚み増加を解消することができる。   Moreover, since the vacuum heat insulating material which insulates the installation part of the refrigerator control part 23 and the installation part of the interior lighting lamp 24 is provided separately as described above, it is suppressed that the wall thickness of the ceiling surface 22 is increased. can do. That is, when a single straight vacuum heat insulating material is installed between the lower end surface of the refrigerator control unit 23 and the upper end surface of the interior lighting lamp 24, the wall thickness of the ceiling surface 22 is increased by the thickness of the vacuum heat insulating material. Although it becomes thick, according to the said structure, the thickness of the 1st vacuum heat insulating material 33 by the side of a refrigerator control part absorbs with the height dimension of the interior lighting lamp 24, and the thickness of the 2nd vacuum heat insulating material 34 by the interior lighting lamp side. Can be absorbed by the dimension in the height direction of the refrigerator control unit 23, and the increase in thickness due to the provision of the vacuum heat insulating material can be eliminated.

したがって、冷蔵庫制御部２３や庫内照明灯２４等を備えている天井面２２であっても、天井面壁厚を厚くすることなく、かつ、板状の一般的な真空断熱材を使用し、さらに真空断熱材を傷つけるなどのことも抑制して断熱性低下の懸念も大幅に低減しつつ、安価で断熱性の高い冷蔵庫とすることができる。   Therefore, even if it is the ceiling surface 22 provided with the refrigerator control part 23, the interior lighting lamp 24, etc., without using a thick ceiling surface wall thickness, and using a plate-shaped general vacuum heat insulating material, It is possible to provide a low-cost and highly heat-insulating refrigerator while suppressing the damage to the vacuum heat insulating material and greatly reducing the fear of a decrease in heat insulating properties.

また、この実施の形態では、上記第１真空断熱材３３と第２真空断熱材３４は、第１真空断熱材３３の庫内照明灯２４側端部が第２真空断熱材３４の冷蔵庫制御部２３側端部にオーバーラップするように設けてあるから、天井面２２の庫内照明灯２４側から冷蔵庫制御部２３側に渡って切れ目なく真空断熱材で断熱することができ、天井面２２の断熱効果を向上させることができる。また、第１真空断熱材３３は冷蔵庫制御部２３の投影部分だけでなくオーバーラップ域Ａを含めて庫内側をカバーするため、高温になり易い冷蔵庫制御部２３の庫内への熱伝導を最小化できる。   Further, in this embodiment, the first vacuum heat insulating material 33 and the second vacuum heat insulating material 34 are the refrigerator control unit in which the end of the first vacuum heat insulating material 33 on the interior lighting lamp 24 side is the second vacuum heat insulating material 34. Since it is provided so that it may overlap with the 23 side edge part, it can insulate with a vacuum heat insulating material seamlessly over the refrigerator control part 23 side from the interior lighting lamp 24 side of the ceiling surface 22, The heat insulation effect can be improved. Moreover, since the 1st vacuum heat insulating material 33 covers not only the projection part of the refrigerator control part 23 but the inside of a store | warehouse | chamber including the overlap area A, the heat conduction into the store | warehouse | chamber of the refrigerator control part 23 which is easy to become high temperature is minimized. Can be

さらに、前記冷蔵庫制御部２３と対向する第１真空断熱材３３は冷蔵庫制御部２３との間に発泡断熱材４が位置するように内箱３上面に両面テープで張り付けるなどして直接装着するとともに、庫内照明灯２４と対向する第２真空断熱材３４も庫内照明灯２４との間に発泡断熱材４が位置するように外箱２内面に両面テープで張り付けるなどして直接装着してあるから、天井面２２の断熱性を高め、かつ、生産性も向上させてコスト抑制を図ることができる。   Further, the first vacuum heat insulating material 33 facing the refrigerator control unit 23 is directly attached to the upper surface of the inner box 3 with double-sided tape so that the foam heat insulating material 4 is located between the refrigerator control unit 23 and the like. At the same time, the second vacuum heat insulating material 34 facing the internal lighting 24 is also directly attached to the inner surface of the outer box 2 with double-sided tape so that the foam heat insulating material 4 is located between the internal lighting 24 Therefore, the heat insulation of the ceiling surface 22 can be improved, and the productivity can be improved to reduce the cost.

すなわち、前記各真空断熱材を発熱源となる冷蔵庫制御部２３や場合によっては発熱減ともなる庫内照明灯２４に接して取り付けると、これらの熱が真空断熱材のアルミシート等で構成されている外被材を介して熱伝導拡散することにより若干の断熱性低下を引き起こす恐れがある。しかしながら、この実施の形態では、前記第１真空断熱材３３及び第２真空断熱材３４は何れも熱源となる冷蔵庫制御部２３及び庫内照明灯２４との間に発泡断熱材４が介在していて、冷蔵庫制御部２３及び庫内照明灯２４からの熱をこの発泡断熱材４によって遮断するようになるので、天井面２２の断熱性をより高いものとすることができるのである。   That is, when each of the vacuum heat insulating materials is attached in contact with the refrigerator control unit 23 serving as a heat generation source or the internal lighting 24 that may reduce heat generation, the heat is constituted by an aluminum sheet or the like of the vacuum heat insulating material. There is a risk of causing a slight decrease in heat insulation properties due to thermal conduction diffusion through the outer covering material. However, in this embodiment, the foamed heat insulating material 4 is interposed between the first vacuum heat insulating material 33 and the second vacuum heat insulating material 34 between the refrigerator control unit 23 and the interior lighting lamp 24 serving as heat sources. And since the heat from the refrigerator control part 23 and the interior lighting lamp 24 will be interrupted | blocked by this foam heat insulating material 4, the heat insulation of the ceiling surface 22 can be made higher.

また、冷蔵庫本体１の成型時には、第１真空断熱材３３を直接装着した内箱３と第２真
空断熱材３４を直接装着した外箱２とを組み合わせてそれらの間に発泡断熱材４を充填すればよく、その際、内箱３と外箱２にそれぞれ真空断熱材保持部材を組み付けて第１、第２真空断熱材３３、３４を中空状態で保持させるような手間が必要でなくなり、この点から生産性も向上してコスト抑制を図ることができるのである。 Further, when the refrigerator body 1 is molded, the inner box 3 directly attached with the first vacuum heat insulating material 33 and the outer box 2 directly attached with the second vacuum heat insulating material 34 are combined and the foam heat insulating material 4 is filled therebetween. In that case, it is not necessary to assemble a vacuum heat insulating material holding member in each of the inner box 3 and the outer box 2 to hold the first and second vacuum heat insulating materials 33 and 34 in a hollow state. From this point, productivity can be improved and cost can be reduced.

また、この冷蔵庫では天井面２２の後方上部に機械室２７を設けて圧縮機１９を設けたことによって冷蔵庫本体１下部の野菜室９の容積を向上させつつ、冷蔵庫制御部２３を天井面２２に設けたことによって生じやすくなる発泡断熱材４の発泡圧による天井面２２の浮き上がり変形も防止することができる利点がある。すなわち、この実施の形態では、前記天井面２２に設けた制御部収納ケース２５の機械室側開口縁部の係合片３０を前記機械室ケース２９の冷蔵庫制御部側の開口縁部に設けた係止孔３１に嵌合弾着させて一体に係合させ連結してあるから、冷蔵庫制御部２３と機械室２７との接合部分の強度が相互補完作用によって向上することになる。したがって、冷蔵庫制御部２３に対向して第１真空断熱材３３を設けたことによりこれら両者間、すなわち、冷蔵庫制御部２３と第１真空断熱材３３との間の隙間が狭くなって発泡断熱材４の充填発泡時に当該発泡圧が前記冷蔵庫制御部２３と機械室２７との接合部分に集中的に加わっても、何ら専用の補強部材を設けることなくその接合部分の変形を防止でき、冷蔵庫制御部２３とともに圧縮機１９等を設置していても天井面２２の外観平面度を良好に保持することができるのである。   Further, in this refrigerator, the machine room 27 is provided at the upper rear part of the ceiling surface 22 and the compressor 19 is provided, so that the volume of the vegetable room 9 at the lower part of the refrigerator body 1 is improved and the refrigerator control unit 23 is placed on the ceiling surface 22. There is an advantage that it is possible to prevent the ceiling surface 22 from being lifted and deformed by the foaming pressure of the foamed heat insulating material 4 that is likely to be generated. That is, in this embodiment, the engagement piece 30 of the machine room side opening edge of the control unit storage case 25 provided on the ceiling surface 22 is provided on the opening edge of the machine room case 29 on the refrigerator control unit side. Since the engagement holes 31 are fitted and fixedly engaged and connected integrally, the strength of the joint portion between the refrigerator control unit 23 and the machine room 27 is improved by the mutual complementing action. Therefore, by providing the first vacuum heat insulating material 33 facing the refrigerator control unit 23, the gap between them, that is, the gap between the refrigerator control unit 23 and the first vacuum heat insulating material 33 is narrowed, and the foam heat insulating material. 4, even when the foaming pressure is concentrated on the joint between the refrigerator control unit 23 and the machine room 27 during the filling and foaming, deformation of the joint can be prevented without providing any dedicated reinforcing member. Even if the compressor 19 and the like are installed together with the portion 23, the flatness of the appearance of the ceiling surface 22 can be maintained well.

以上、本発明の実施形態を説明したが、上記実施の形態は本発明を実施するうえでの一例として示したものであり、本発明の目的を達成する範囲内で種々変更可能であることは言うまでもない。   As mentioned above, although embodiment of this invention was described, the said embodiment was shown as an example in implementing this invention, and it can change variously within the range which achieves the objective of this invention. Needless to say.

例えば、圧縮機１９を設ける機械室２７を冷蔵庫本体１の後方上部に設けたものを例示したが、これは従来と同様冷蔵庫本体１の下部後方に設けてもよいものである。   For example, although the machine room 27 in which the compressor 19 is provided is illustrated in the rear upper part of the refrigerator main body 1, this may be provided in the lower rear of the refrigerator main body 1 as in the past.

以上のように本発明は、冷蔵庫制御部や庫内照明灯等を備えている天井面であっても真空断熱材は特別な加工をせず板状の一般的な真空断熱材を使用して壁厚増加を抑制しつつ断熱することができるとともに、生産過程時に真空断熱材を傷つけるなどのことも抑制できて断熱性低下の懸念も大幅に低減でき、安価で断熱性の高い冷蔵庫を提供することができる。よって、一般用はもちろん業務用の冷蔵庫やワインクーラーにも幅広く適用できる。   As described above, the present invention uses a plate-like general vacuum heat insulating material without special processing even if the vacuum heat insulating material is a ceiling surface provided with a refrigerator control unit, an interior lighting, etc. Insulation can be achieved while suppressing the increase in wall thickness, and the vacuum insulation material can be prevented from being damaged during the production process, which can greatly reduce the fear of deterioration of the insulation performance, and provide an inexpensive and highly insulated refrigerator. be able to. Therefore, it can be widely applied to commercial refrigerators and wine coolers as well as general ones.

１ 冷蔵庫本体
２ 外箱
３ 内箱
４ 発泡断熱材
５ 冷蔵室
６ 切替室
７ 製氷室
８ 冷凍室
９ 野菜室
１０，１１，１２，１３，１４ 扉
１６ 冷却室
１７ 冷却器
１８ 送風ファン
１９ 圧縮機
２０ 放熱パイプ
２１ キャピラリーチューブ
２２ 天井面
２３ 冷蔵庫制御部
２４ 庫内照明灯
２５ 制御部収納ケース
２６ 制御基板
２７ 機械室
２８ 冷却ファン
２９ 機械室ケース
３０ 係合片
３１ 係止孔
３２ 制御部収納蓋
３３ 第１真空断熱材
３４ 第２真空断熱材 DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Outer box 3 Inner box 4 Foam heat insulating material 5 Refrigeration room 6 Switching room 7 Ice making room 8 Freezing room 9 Vegetable room 10, 11, 12, 13, 14 Door 16 Cooling room 17 Cooler 18 Air blower fan 19 Compressor DESCRIPTION OF SYMBOLS 20 Radiation pipe 21 Capillary tube 22 Ceiling surface 23 Refrigerator control part 24 Interior lighting lamp 25 Control part storage case 26 Control board 27 Machine room 28 Cooling fan 29 Machine room case 30 Engagement piece 31 Locking hole 32 Control part storage lid 33 First vacuum heat insulating material 34 Second vacuum heat insulating material

Claims (4)

外箱と内箱との間に発泡断熱材を充填して構成した冷蔵庫本体を備えた冷蔵庫であって、前記冷蔵庫本体の天井面は、その後方上部に冷蔵庫制御部を有するとともに前方冷蔵室内面側に庫内照明灯を備えていて、前記冷蔵庫制御部と対向する部分の内箱側に第１真空断熱材を装着するとともに、前記庫内照明灯と対向する部分の外箱側に前記第１真空断熱材とは別体の第２真空断熱材を装着した冷蔵庫。 A refrigerator provided with a refrigerator main body configured by filling a foam heat insulating material between an outer box and an inner box, the ceiling surface of the refrigerator main body having a refrigerator control unit at the rear upper part thereof and a front refrigerator compartment surface The interior lighting lamp is provided on the side, the first vacuum heat insulating material is mounted on the inner box side of the portion facing the refrigerator control unit, and the first casing is disposed on the outer box side of the portion facing the interior lighting lamp. A refrigerator equipped with a second vacuum heat insulating material that is separate from the one vacuum heat insulating material. 第１の真空断熱材と第２の真空断熱材はその端部分をオーバーラップさせた請求項１記載の冷蔵庫。 The refrigerator according to claim 1, wherein end portions of the first vacuum heat insulating material and the second vacuum heat insulating material overlap each other. 冷蔵庫制御部と対向する第１の真空断熱材は冷蔵庫制御部との間に発泡断熱材が位置するように内箱上面に直接装着するとともに、庫内照明灯と対向する第２の真空断熱材も庫内照明灯との間に発泡断熱材が位置するように外箱内面に直接装着した請求項１または２記載の冷蔵庫。 The first vacuum heat insulating material facing the refrigerator control unit is directly attached to the upper surface of the inner box so that the foam heat insulating material is positioned between the refrigerator control unit and the second vacuum heat insulating material facing the interior lamp. The refrigerator according to claim 1 or 2, wherein the refrigerator is mounted directly on the inner surface of the outer box so that the foam heat insulating material is positioned between the interior lighting lamps. 天井面には冷蔵庫制御部を収納する制御部収納ケースを装着するとともに、当該冷蔵庫制御部の後方に圧縮機を収容する凹状の機械室設け、この機械室を形成する機械室ケースの冷蔵庫制御部側の開口縁部と前記冷蔵庫制御部を収納した制御部収納ケースの機械室側開口縁部とを係合させて連結した請求項１〜３のいずれか１項記載の冷蔵庫。 A control unit storage case for storing the refrigerator control unit is mounted on the ceiling surface, and a concave machine room for storing the compressor is provided behind the refrigerator control unit, and the refrigerator control unit of the machine room case forming the machine room The refrigerator of any one of Claims 1-3 which engaged and connected the opening edge part of the side and the machine room side opening edge part of the control part storage case which accommodated the said refrigerator control part.
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